Broken SU(3) symmetry at low spin in 178–186Os

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Published 22 May 2003 • Published under licence by IOP Publishing Ltd
, , Citation A Bouldjedri and M L Benabderrahmane 2003 J. Phys. G: Nucl. Part. Phys. 29 1327 DOI 10.1088/0954-3899/29/7/301

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1 Department of Physics, Faculty of Science, University of Batna, Avenue Boukhelouf M El Hadi, 05000 Batna, Algeria

2 Department of Physics, Faculty of Science, University of Constantine, Route Ain El Bey, 25000 Constantine, Algeria

3 Present address: Physikalisches Institut, Philosophenweg 12, 69120 Heidelberg, Germany.

Dates

  1. Received 20 November 2002
  2. Published

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Abstract

The test of the SU(3) symmetry near the neutron number N = 104 is extended to the osmium isotopes. It is shown that the available experimental data point towards a slightly broken SU(3) symmetry. This result is analysed theoretically using three mechanisms of symmetry breaking: the effect of SO(6), the consistent Q-formalism and the parameter symmetry of the interacting boson model.

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10.1088/0954-3899/29/7/301